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简介：43.05。历史；43.10。一般；43.15。标准；43.20。一般线性声学；43.25。非线性的声学；43.28。Aeroacoustics和大气的声音；43.30。在水下发出声音；43.35。声音的Ultrasonics，量声学，和物理效果；43.38。Transduction，为声音的产生和繁殖的听觉的设备；43.40。结构的声学和颤动；43.50。噪音它的效果和控制；43.55。建筑上的声学；43.58。听觉的大小和乐器学；43.60。声学的信号处理；43.64。生理的声学；43.66。心理声学；43.70。讲话生产；43.71。讲话感觉；43.72。语音处理和通讯系统；43.75。音乐和乐器；43.80。Bioacoustics；43.90。在声学的另外的话题。

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简介：43.10.General;43.15.Standards;43.20.Generallinearacoustics;43.25.Nonlinearacoustics;43.28.Aeroacousticsandatmosphericsound;43.30.Underwatersound;43.35.Ultrasonics,quantumacoustics,andphysicaleffectsofsound;43.38.Transduction,acousticaldevicesforthegenerationand

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简介：43.05.History;43.10.General;43.15.Standards;43.20.Generallinearacoustics;43.25.Nonlinearacoustics;43.28.Aeroacousticsandatmosphericsound;43.30.Underwatersound;43.35.Ultrasonics,quantumacoustics,andphysicaleffectsofsound;43.38.Transduction,acousticaldevicesforthegen-erationandreproductionofsound;43.40.Structuralacousticsandvibration;43.50.Noise:itseffectsandcontrol;43.55.Architecturalacoustics;43.58.Acousticalmeasurementsandinstrumentation;43.60.Acousticsignalprocessing;43.64.Physiologicalacoustics;43.66.Psychologicalacoustics;43.70.Speechproduction;43.71.Speechperception;43.72.Speechprocessingandcommunicationsystems;43.75.Musicandmusicalinstruments;43.80.Bioacoustics.

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简介：43.05.History;43.10.General;43.15.Standards;43.20.Generallinearacoustics;43.25.Nonlinearacoustics;43.28.Aeroacousticsandatmosphericsound;43.30.Underwatersound;43.35.Ultrasonics,quantumacoustics,andphysicaleffectsofsound;43.38.Transduction,acousticaldevicesforthegen-erationandreproductionofsound;43.40.Structuralacousticsandvibration;43.50.Noise:itseffectsandcontrol;43.55.Architecturalacoustics;43.58.Acousticalmeasurementsandinstrumentation;43.60.Acousticsignalprocessing;43.64.Physiologicalacoustics;43.66.Psychologicalacoustics;43.70.Speechproduction;43.71.Speechperception;43.72.Speechprocessingandcommunicationsystems;43.75.Musicandmusicalinstruments;43.80.Bioacoustics.

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简介：Thestabilityofriverbankssubjecttoseepageisstudiedexperimentallyandtheoreticallyinthispaper.Byincludingseepageina3-dimensionaltheoreticalanalysis,thestudyfirstshowshowthecriticalslopeorangleofreposeofacohesionlessmaterialisrelatedtotheratioofthehydraulicgradientofseepagetoitscriticalvalueunderthefluidizationcondition.Thecriticalstableslopeisshowntoberelatedtonotonlythehydraulicgradientbutalsotheseepagedirection.Measuredlaboratorydatareasonablyfitwellwiththetheoreticalrelationshipforthecaseofinjectionandsuction.Thedatarevealthattheslopeisreducedwithinjectionandincreasedwithsuction,respectively.Additionally,thestudyidentifiestheseepagedirectionwhichresultsinaminimumcriticalstableslopeforacertainhydraulicgradientofseepage.

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简介：<正>Ethnomusicologyasanemergingdisciplinehasmanykindofstatement.ThroughreadingMkolinski’article《ThesubjectandmethodofEthnomusicology》andthinkofethnomusicologyresearch.TheethnomusicologyIntheprocessofdevelopmentusedtomanykindsofMethodologyandinthisarticlesothatmethodologybycomparingtheperiodscholarswecanfoundethnomusicologyinthecourseofhistory.Thisarticledescribesthemethodfromanumberofmusicologists.

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